import chalk from 'chalk';
import detectPort from 'detect-port';

const port = process.env.PORT || '1212';

detectPort(port, (_err, availablePort) => {
    if (port !== String(availablePort)) {
        throw new Error(
            chalk.whiteBright.bgRed.bold(
                `Port "${port}" on "localhost" is already in use. Please use another port. ex: PORT=4343 npm start`
            )
        );
    } else {
        process.exit(0);
    }
});
